Oiling device for electric controllers



April 12, 1932. v DUNLQP I 1,854,121

OILING DEVICE FOR ELECTRIC CONTROLLERS Filed Oct. 23, 19-29 Patented Apr. 12, 1932 UNITED STATES PATENT OFFICE ROBERT BOUSE DUNLOP, OF COLUMBUS, OHIO, ASSIGNOR TO THE JEFFREY MANUFAC- I TUBING- GOMPANY, OF COLUMBUS, OHIO, A CORPORATION OF OHIO OILING DEVICE FOR- ELEOTBIC CONTROLLERS Application filed October 23, 1929. Serial No. 401,844.

The invention relates to an oiling device for electric controllers.

It has been found that the segments of commutating cylinders and the brushes of electric controllers and the like become rough and blistered after continued use. When such wear occurs, the line of contact is reduced, and the arc becomes more intense, thereby doing further damage to the parts mentioned and reducing the efliciency of the controller.

The object of my present invention is to provide an oiling device for the segments of commutating cylinders and brushes of electric controllers and the like, which will eliminate the objections described.

Another object of my invention is to provide an oiling device which will increase the efliciency and prolong the life of the segments of commutating cylinders and brushes of an electric controller and the like.

Still another ob'ect of my invention is to provide an oiling device of the character described which is extremely simple in arrangement, easily installed, and cheap to manufacture.

With these and otherobjects and advantages in mind, attention is called to the drawings in which:

Figure 1 is a cross section of an electric controller of conventional design.

Figure 2 is a side view of the oiling mechanism, and

Figure 3 is a section taken along the line 3-3 of Figure 2.

In order to illustrate and describe my oiling device, an electric controller, such as shown in Patent 1,7 26,846, Levin, September 3, 1929, is appropriated. As the electric controller forms no part of the invention, only those parts necessary to the operation of the oiling device will be specifically mentioned. It is to be understood that the invention can be applied to any and all forms of electric mechanism wherein are used commutating cylinders and brushes.

Referring specifically to the drawings wherein like numbers indicate like parts, 1 is a commutating cylinder provided with contact segments 2 adapted to contact with brushes 3, which are connected with the conductors of a locomotive or the like. The fingers 4 of the brushes and the point or end 5 of the segments are the parts of the controller subject to most wear, thereby causing the same to become rough and blistered.

A partition 6 is attached to the back plate 7, and is provided with rectangular shaped apertures 8. A length of said partition along the vertical center line of the said apertures. Within the groove 9 is placed a shaft 10, held therein by any suitable means, such as clamps 11. The shaft 10 is preferably a flexible shaft, so held in the clamps 11 that it may move under stresses, and it has been found that a shaft of raw hide, properly shaped, serves the purpose very well. The shaft 10 is equipped with one or more cylindrical members 12, which may be made of any absorbent material, such as felt. The cylindrical members comprise, in the particular embodiment of the invention here shown, a series of washer-like discs, although it is obvious that such construction may be varied. Each cylindrical member is provided with an eyelet 13 to prevent undue wear. It is not imperative that the shaft 10 be held in the groove groove 9 extends the entire 9 by clamps 11, for if the oiling devlce is properly positioned in respect to the segments of the commutating cylinder, such contact will at all times retain the said shaft within the said groove and prevent displacement thereof.

The cylindrical members, as shown in Fig ure 2, may be varied in length to coordinate with the difierent lengths of commutating segments. A substantially continuous cylindrical member might be used, of such length and said members thereon can be easily done.

In operation, the oiling cylinders are placed in contact with the segments of the commutating cylinder, and it will be found that film of oil is always present on the segments and the fingers of the brushes, thereby preventing the grinding action of the seg ments and brushes through continual engagement and disengagement with each other.

1 The invention herein shown is subject to various forms and modifications without departing from the scope of the appended claims.

I claim:

1. An oiling device for electric controllers having a plurality of spaced rotatable segments, comprising a support disposed adjacent the path of said segments and having a series of apertures therein, a shaft carried by said support and spanning the series of apertures, and oil saturated rollers carried by said shaft and disposed in the apertures of said support, at least one of which rollers is in the path of and in contact with at least one of said segments and rotated thereby.

2. An oiling device for electric controllers having a plurality of spaced rotatable segments of different Widths, comprising support disposed adjacent the path of said segments, a shaft carried by said support, and a plurality of oil dispensing rollers of different Widths corresponding to the Widths ct said segments mounted on said shaft, at least one of said rollers being in the path of and in contact with one of said segments and rotated thereby.

In testimony whereof I have hereunto set my hand.

ROBERT HOUSE DUN LOP. 

